{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8e7adb0084b16d52983388c1d4bbd97d8331592ae4b5d32f0f7166d74c963ae7",
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    "signer": "0xe870ec4947dB73C98Ca22e9cb6f8b03C3e33E23B",
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}